title: The isolation of Brucella abortus biotype I from serologically positive reactors following on S19 adult inoculation of dairy cows.
abstract: The incidence of infection following adult inoculation is such that this method alone cannot be relied on to control the spread of brucellosis. Brucella infection is present in a high percentage of serologically positive cases using the interpretation of titres as applied in South African. One premature and one full term calf born to cows 7-9 months after adult vaccination as well as the placentae, discharges and colostrum were all heavily infected with B. abortus biotype I.
mesh_terms: D000372:Agglutination Tests; D000818:Animals; D002004:Brucella Vaccine / Q000276:immunology*; D002003:Brucella abortus / Q000302:isolation & purification; D002007:Brucellosis, Bovine / Q000276:immunology / Q000517:prevention & control*; D002417:Cattle; D003168:Complement Fixation Tests; D005260:Female; D013997:Time Factors
chemical_list: D002004:Brucella Vaccine